This upgraded wireless hair straightening comb adopts negative ion technology to repair frizzy hair, moisturize and smooth rough hair texture. Integrated straightening and curling 2-in-1 design meets various hairstyle needs. Cordless and portable design is lightweight and space-saving, easy to carry for travel, business trips and outdoor use. Safe constant temperature heating avoids scalp damage, simple operation, suitable for home and on-the-go quick hairstyle styling for all hair types.